//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//

package test.test;

import java.util.Random;

public class test3 {
    public test3() {
    }

    public static void main(String[] args) {
        long startTime = System.currentTimeMillis();
        extracted(4, 1);
        long endTime = System.currentTimeMillis();
        System.out.println("\n程序运行时间： " + (endTime - startTime) + "ms");
    }

    private static void extracted(int letter, int number) {
        String str = "";
        Random rand = new Random();

        for(int i = 0; i < letter; ++i) {
            int bool = rand.nextInt(2);
            if (bool == 0) {
                char char1 = (char)(rand.nextInt(26) + 65);
                str = str + char1;
            } else {
                char char1 = (char)(rand.nextInt(26) + 97);
                str = str + char1;
            }
        }

        for(int j = 0; j < number; ++j) {
            int num = rand.nextInt(10);
            str = str + num;
        }

        System.out.println(str);
    }
}
